CATECHOLAMINES, FRACTIONATED, 24-HOUR URINE

Test Code: S502Specimen Collection: Urine
Component:


Total Volume (mL)
Epinephrine
Norepinephrine
Total Catechol (Nor + Epi)
Dopamine
Creatinine, 24-Hour Urine

Method:


Ultra Performance Liquid Chromatography,
Electrochemical Detection, Kinetic Alkaline Picrate

Collection Notes: The 24-hour urine is to be collected with 25 mL of 6N HCl to maintain pH below 3. Record the 24-hour urine volume on test request form and on the urine vial. Specimen may be transported at room temperature.
Clinical Utility: The measurement of circulating catecholamines is useful in the diagnosis of catecholamine secreting tumors associated with hypertension.
CPT Code: 82384, 82570Testing Location: Sent to reference lab
SPECIMEN/STABILITY TYPE
Temperature:

24-Hour Urine with HCl (10 mL)

Ambient
 
7
 
Days
Refrigerated
 
30
 
Days
Frozen
 
49
 
Days
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